![background image](http://html1.mh-extra.com/html/omron/sysmac-cj1w-prm21/sysmac-cj1w-prm21_operation-manual_743083169.webp)
155
Appendix
Note The Device related diagnostics as defined above is according to the PROFIBUS-DPV0 standard. With
the release of the PROFIBUS-DPV1 standard, the Device related diagnostics contents has been re-
defined to accommodate diagnostics from slave stations supporting PROFIBUS-DPV1.
Module Related Diagnostics
The Module or Identifier related diagnostics data block consist of a header byte followed by one or more bytes
containing flags, which indicate if there is diagnostics pending related to the I/O Configuration modules. Each
flag is related to the corresponding I/O module, defined during configuration. Non-used flags are always set to
0.
The figure below shows the header byte, and one module diagnostics byte. Depending on the number of I/O
modules configured, there may be more bytes.
Bit
Name
Description
00
~
05
Block length
These bits contain the length of the Device related diagnostics data block, includ-
ing the header byte. The Device diagnostics will follow this header byte.
Maximum length of the block, including the header is 63 bytes.
Interpretation of the diagnostics bytes in this block is device dependent.
06
~
07
Reserved
Fixed to 00.
The combination of bit 6 and 7 indicate the type of diagnostics, i.e. 00 indicates
Device related diagnostics data.
0 0
7
6
5
4
3
2
1
0
Block Length
0 1
7
6
5
4
3
2
1
0
Block Length
Header Byte
Module Diagnostics Byte
7
6
5
4
3
2
1
0
Module 0 Diagnostics
Module 1 Diagnostics
Module 2 Diagnostics
Module 3 Diagnostics
Module 4 Diagnostics
Module 5 Diagnostics
Module 6 Diagnostics
Module 7 Diagnostics
Содержание SYSMAC CJ1W-PRM21
Страница 2: ...iv...
Страница 36: ...22 Basic Operating Procedure Section 1 5...
Страница 52: ...38 Defining PROFIBUS DP in the Software Section 2 5...
Страница 112: ...98 Allocated CIO Area Words Section 4 2...
Страница 122: ...108 Command Response Reference Section 5 2...
Страница 160: ...146 Replacing the Unit Section 7 8...
Страница 174: ...160 Appendix...
Страница 180: ...166 I O Data Conversions Appendix D...
Страница 186: ...172 Configurator Error and Warning Messages Appendix E...
Страница 187: ...173 Index...
Страница 188: ...174 Index...
Страница 190: ...176 Revision History...